int main(int argc,char **argv)
{
PetscDraw draw;
PetscErrorCode ierr;
int x = 0,y = 0,width = 300,height = 300;
ierr = PetscInitialize(&argc,&argv,NULL,help);CHKERRQ(ierr);
ierr = PetscDrawCreate(PETSC_COMM_WORLD,0,"Title",x,y,width,height,&draw);CHKERRQ(ierr);
ierr = PetscDrawSetPause(draw,2.0);CHKERRQ(ierr);
ierr = PetscDrawSetFromOptions(draw);CHKERRQ(ierr);
ierr = PetscDrawSetViewPort(draw,.25,.25,.75,.75);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,0.0,0.0,1.0,1.0,PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawString(draw,.2,.2,PETSC_DRAW_RED,"Some Text");CHKERRQ(ierr);
ierr = PetscDrawString(draw,.5,.5,PETSC_DRAW_GREEN,"Some Text");CHKERRQ(ierr);
ierr = PetscDrawString(draw,.2,.8,PETSC_DRAW_BLUE,"Some Text");CHKERRQ(ierr);
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
ierr = PetscDrawSave(draw);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
/*ierr = PetscDrawStringSetSize(draw,.5,.5);CHKERRQ(ierr);*/
ierr = PetscDrawString(draw,.2,.2,PETSC_DRAW_RED,"Some Text");CHKERRQ(ierr);
ierr = PetscDrawString(draw,.5,.5,PETSC_DRAW_GREEN,"Some Text");CHKERRQ(ierr);
ierr = PetscDrawString(draw,.2,.8,PETSC_DRAW_BLUE,"Some Text");CHKERRQ(ierr);
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
ierr = PetscDrawSave(draw);CHKERRQ(ierr);
ierr = PetscDrawResizeWindow(draw,600,600);CHKERRQ(ierr);
ierr = PetscDrawGetWindowSize(draw,&width,&height);CHKERRQ(ierr);
ierr = PetscDrawSetViewPort(draw,0,0,1,1);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
/*ierr = PetscDrawLine(draw,0.0,0.0,1.0,1.0,PETSC_DRAW_RED);CHKERRQ(ierr);*/
/*ierr = PetscDrawLine(draw,0.0,1.0,1.0,0.0,PETSC_DRAW_BLUE);CHKERRQ(ierr);*/
ierr = PetscDrawString(draw,.2,.2,PETSC_DRAW_RED,"Some Text\n Some Other Text");CHKERRQ(ierr);
ierr = PetscDrawString(draw,.5,.5,PETSC_DRAW_RED,"ABCygj\n()[]F$");CHKERRQ(ierr);
ierr = PetscDrawString(draw,0,0,PETSC_DRAW_RED,"Horizontal Text (ABCygj)");CHKERRQ(ierr);
ierr = PetscDrawStringVertical(draw,0,1,PETSC_DRAW_RED,"Vertical Text");CHKERRQ(ierr);
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
ierr = PetscDrawSave(draw);CHKERRQ(ierr);
ierr = PetscDrawDestroy(&draw);CHKERRQ(ierr);
ierr = PetscFinalize();
return ierr;
}
int main(int argc,char **argv)
{
PetscDraw draw;
PetscErrorCode ierr;
int x = 0,y = 0,width = 300,height = 300;
ierr = PetscInitialize(&argc,&argv,(char*)0,help);CHKERRQ(ierr);
ierr = PetscDrawCreate(PETSC_COMM_WORLD,0,"Title",x,y,width,height,&draw);CHKERRQ(ierr);
#if defined (PETSC_HAVE_X)
ierr = PetscDrawSetType(draw,"x");CHKERRQ(ierr);
ierr = PetscDrawSetType(draw,"null");CHKERRQ(ierr);
ierr = PetscDrawSetType(draw,"x");CHKERRQ(ierr);
#else
ierr = PetscDrawSetType(draw,"null");CHKERRQ(ierr);
#endif
ierr = PetscDrawSetViewPort(draw,.25,.25,.75,.75);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,0.0,0.0,1.0,1.0,PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawString(draw,.2,.2,PETSC_DRAW_RED,"Some Text");CHKERRQ(ierr);
ierr = PetscDrawStringSetSize(draw,.5,.5);CHKERRQ(ierr);
ierr = PetscDrawString(draw,.2,.2,PETSC_DRAW_BLUE,"Some Text");CHKERRQ(ierr);
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscSleep(2);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr); ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawResizeWindow(draw,600,600);CHKERRQ(ierr);
ierr = PetscSleep(2);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,0.0,1.0,1.0,0.0,PETSC_DRAW_BLUE);
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscSleep(2);CHKERRQ(ierr);
ierr = PetscDrawDestroy(&draw);CHKERRQ(ierr);
ierr = PetscFinalize();
return 0;
}
EXTERN_C_END
#undef __FUNCT__
#define __FUNCT__ "PetscViewerDrawClear"
/*@
PetscViewerDrawClear - Clears a PetscDraw graphic associated with a PetscViewer.
Not Collective
Input Parameter:
. viewer - the PetscViewer
Level: intermediate
.seealso: PetscViewerDrawOpen(), PetscViewerDrawGetDraw(),
@*/
PetscErrorCode PETSC_DLLEXPORT PetscViewerDrawClear(PetscViewer viewer)
{
PetscErrorCode ierr;
PetscInt i;
PetscTruth isdraw;
PetscViewer_Draw *vdraw;
PetscFunctionBegin;
ierr = PetscTypeCompare((PetscObject)viewer,PETSC_VIEWER_DRAW,&isdraw);CHKERRQ(ierr);
if (isdraw) {
vdraw = (PetscViewer_Draw*)viewer->data;
for (i=0; i<vdraw->draw_max; i++) {
if (vdraw->draw[i]) {ierr = PetscDrawClear(vdraw->draw[i]);CHKERRQ(ierr);}
}
}
PetscFunctionReturn(0);
}
/*@
PetscDrawLGDraw - Redraws a line graph.
Not Collective,but ignored by all processors except processor 0 in PetscDrawLG
Input Parameter:
. lg - the line graph context
Level: intermediate
.seealso: PetscDrawSPDraw(), PetscDrawLGSPDraw()
@*/
PetscErrorCode PetscDrawLGDraw(PetscDrawLG lg)
{
PetscReal xmin=lg->xmin,xmax=lg->xmax,ymin=lg->ymin,ymax=lg->ymax;
PetscErrorCode ierr;
int i,j,dim = lg->dim,nopts = lg->nopts,rank,cl;
PetscDraw draw = lg->win;
PetscFunctionBegin;
if (lg && ((PetscObject)lg)->classid == PETSC_DRAW_CLASSID) PetscFunctionReturn(0);
PetscValidHeaderSpecific(lg,PETSC_DRAWLG_CLASSID,1);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
ierr = PetscDrawAxisSetLimits(lg->axis,xmin,xmax,ymin,ymax);CHKERRQ(ierr);
ierr = PetscDrawAxisDraw(lg->axis);CHKERRQ(ierr);
ierr = MPI_Comm_rank(((PetscObject)lg)->comm,&rank);CHKERRQ(ierr);
if (!rank) {
for (i=0; i<dim; i++) {
for (j=1; j<nopts; j++) {
if (lg->colors) cl = lg->colors[i];
else cl = PETSC_DRAW_BLACK+i;
ierr = PetscDrawLine(draw,lg->x[(j-1)*dim+i],lg->y[(j-1)*dim+i],lg->x[j*dim+i],lg->y[j*dim+i],cl);CHKERRQ(ierr);
if (lg->use_dots) {
ierr = PetscDrawString(draw,lg->x[j*dim+i],lg->y[j*dim+i],PETSC_DRAW_RED,"x");CHKERRQ(ierr);
}
}
}
}
if (lg->legend) {
PetscReal xl,yl,xr,yr,tw,th;
size_t len,mlen = 0;
int cl;
ierr = PetscDrawGetCoordinates(draw,&xl,&yl,&xr,&yr);CHKERRQ(ierr);
ierr = PetscDrawStringGetSize(draw,&tw,&th);CHKERRQ(ierr);
for (i=0; i<dim; i++) {
ierr = PetscStrlen(lg->legend[i],&len);CHKERRQ(ierr);
mlen = PetscMax(mlen,len);
}
ierr = PetscDrawLine(draw,xr - (mlen + 8)*tw,yr - 3*th,xr - 2*tw,yr - 3*th,PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,xr - (mlen + 8)*tw,yr - 3*th,xr - (mlen + 8)*tw,yr - (4+lg->dim)*th,PETSC_DRAW_BLACK);CHKERRQ(ierr);
for (i=0; i<dim; i++) {
cl = (lg->colors ? lg->colors[i] : i + 1);
ierr = PetscDrawLine(draw,xr - (mlen + 6.7)*tw,yr - (4 + i)*th,xr - (mlen + 3.2)*tw,yr - (4 + i)*th,cl);CHKERRQ(ierr);
ierr = PetscDrawString(draw,xr - (mlen + 3)*tw,yr - (4.5 + i)*th,PETSC_DRAW_BLACK,lg->legend[i]);CHKERRQ(ierr);
}
ierr = PetscDrawLine(draw,xr - 2*tw,yr - 3*th,xr - 2*tw,yr - (4+lg->dim)*th,PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,xr - (mlen + 8)*tw,yr - (4+lg->dim)*th,xr - 2*tw,yr - (4+lg->dim)*th,PETSC_DRAW_BLACK);CHKERRQ(ierr);
}
ierr = PetscDrawFlush(lg->win);CHKERRQ(ierr);
ierr = PetscDrawPause(lg->win);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
/*@
PetscDrawScalePopup - draws a contour scale window.
Collective on PetscDraw
Input Parameters:
+ popup - the window (often a window obtained via PetscDrawGetPopup()
. min - minimum value being plotted
- max - maximum value being plotted
Level: intermediate
Notes: All processors that share the draw MUST call this routine
.seealso: PetscDrawGetPopup(), PetscDrawTensorContour()
@*/
PetscErrorCode PetscDrawScalePopup(PetscDraw popup,PetscReal min,PetscReal max)
{
PetscBool isnull;
PetscReal xl = 0.0,yl = 0.0,xr = 1.0,yr = 1.0;
PetscMPIInt rank;
PetscErrorCode ierr;
int i;
char string[32];
PetscFunctionBegin;
if (!popup) PetscFunctionReturn(0);
PetscValidHeaderSpecific(popup,PETSC_DRAW_CLASSID,1);
ierr = PetscDrawIsNull(popup,&isnull);
CHKERRQ(ierr);
if (isnull) PetscFunctionReturn(0);
ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)popup),&rank);
CHKERRQ(ierr);
ierr = PetscDrawCheckResizedWindow(popup);
CHKERRQ(ierr);
ierr = PetscDrawClear(popup);
CHKERRQ(ierr);
ierr = PetscDrawSetTitle(popup,"Contour Scale");
CHKERRQ(ierr);
ierr = PetscDrawSetCoordinates(popup,xl,yl,xr,yr);
CHKERRQ(ierr);
ierr = PetscDrawCollectiveBegin(popup);
CHKERRQ(ierr);
if (!rank) {
for (i=0; i<10; i++) {
int c = PetscDrawRealToColor((PetscReal)i/9,0,1);
ierr = PetscDrawRectangle(popup,xl,yl,xr,yr,c,c,c,c);
CHKERRQ(ierr);
yl += 0.1;
}
for (i=0; i<10; i++) {
PetscReal value = min + i*(max-min)/9;
/* look for a value that should be zero, but is not due to round-off */
if (PetscAbsReal(value) < 1.e-10 && max-min > 1.e-6) value = 0.0;
ierr = PetscSNPrintf(string,sizeof(string),"%18.16e",(double)value);
CHKERRQ(ierr);
ierr = PetscDrawString(popup,0.2,0.02+i/10.0,PETSC_DRAW_BLACK,string);
CHKERRQ(ierr);
}
}
ierr = PetscDrawCollectiveEnd(popup);
CHKERRQ(ierr);
ierr = PetscDrawFlush(popup);
CHKERRQ(ierr);
ierr = PetscDrawSave(popup);
CHKERRQ(ierr);
PetscFunctionReturn(0);
}
/*@
PetscDrawLGSPDraw - Redraws a line graph.
Collective on PetscDrawLG
Input Parameter:
. lg - the line graph context
Level: intermediate
.seealso: PetscDrawLGDraw(), PetscDrawSPDraw()
Developer Notes: This code cheats and uses the fact that the LG and SP structs are the same
@*/
PetscErrorCode PetscDrawLGSPDraw(PetscDrawLG lg,PetscDrawSP spin)
{
PetscDrawLG sp = (PetscDrawLG)spin;
PetscReal xmin,xmax,ymin,ymax;
PetscErrorCode ierr;
PetscBool isnull;
PetscMPIInt rank;
PetscDraw draw;
PetscFunctionBegin;
PetscValidHeaderSpecific(lg,PETSC_DRAWLG_CLASSID,1);
PetscValidHeaderSpecific(sp,PETSC_DRAWSP_CLASSID,2);
ierr = PetscDrawIsNull(lg->win,&isnull);CHKERRQ(ierr);
if (isnull) PetscFunctionReturn(0);
ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)lg),&rank);CHKERRQ(ierr);
draw = lg->win;
ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
xmin = PetscMin(lg->xmin,sp->xmin); ymin = PetscMin(lg->ymin,sp->ymin);
xmax = PetscMax(lg->xmax,sp->xmax); ymax = PetscMax(lg->ymax,sp->ymax);
ierr = PetscDrawAxisSetLimits(lg->axis,xmin,xmax,ymin,ymax);CHKERRQ(ierr);
ierr = PetscDrawAxisDraw(lg->axis);CHKERRQ(ierr);
ierr = PetscDrawCollectiveBegin(draw);CHKERRQ(ierr);
if (!rank) {
int i,j,dim,nopts;
dim = lg->dim;
nopts = lg->nopts;
for (i=0; i<dim; i++) {
for (j=1; j<nopts; j++) {
ierr = PetscDrawLine(draw,lg->x[(j-1)*dim+i],lg->y[(j-1)*dim+i],lg->x[j*dim+i],lg->y[j*dim+i],PETSC_DRAW_BLACK+i);CHKERRQ(ierr);
if (lg->use_markers) {
ierr = PetscDrawMarker(draw,lg->x[j*dim+i],lg->y[j*dim+i],PETSC_DRAW_RED);CHKERRQ(ierr);
}
}
}
dim = sp->dim;
nopts = sp->nopts;
for (i=0; i<dim; i++) {
for (j=0; j<nopts; j++) {
ierr = PetscDrawMarker(draw,sp->x[j*dim+i],sp->y[j*dim+i],PETSC_DRAW_RED);CHKERRQ(ierr);
}
}
}
ierr = PetscDrawCollectiveEnd(draw);CHKERRQ(ierr);
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
/*@
PetscDrawLGSPDraw - Redraws a line graph.
Not Collective,but ignored by all processors except processor 0 in PetscDrawLG
Input Parameter:
. lg - the line graph context
Level: intermediate
.seealso: PetscDrawLGDraw(), PetscDrawSPDraw()
Developer Notes: This code cheats and uses the fact that the LG and SP structs are the same
@*/
PetscErrorCode PetscDrawLGSPDraw(PetscDrawLG lg,PetscDrawSP spin)
{
PetscDrawLG sp = (PetscDrawLG)spin;
PetscReal xmin,xmax,ymin,ymax;
PetscErrorCode ierr;
int i,j,dim,nopts,rank;
PetscDraw draw = lg->win;
PetscFunctionBegin;
if (lg && ((PetscObject)lg)->classid == PETSC_DRAW_CLASSID) PetscFunctionReturn(0);
PetscValidHeaderSpecific(lg,PETSC_DRAWLG_CLASSID,1);
PetscValidHeaderSpecific(sp,PETSC_DRAWSP_CLASSID,2);
xmin = PetscMin(lg->xmin,sp->xmin);
ymin = PetscMin(lg->ymin,sp->ymin);
xmax = PetscMax(lg->xmax,sp->xmax);
ymax = PetscMax(lg->ymax,sp->ymax);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
ierr = PetscDrawAxisSetLimits(lg->axis,xmin,xmax,ymin,ymax);CHKERRQ(ierr);
ierr = PetscDrawAxisDraw(lg->axis);CHKERRQ(ierr);
ierr = MPI_Comm_rank(((PetscObject)lg)->comm,&rank);CHKERRQ(ierr);
if (!rank) {
dim = lg->dim;
nopts = lg->nopts;
for (i=0; i<dim; i++) {
for (j=1; j<nopts; j++) {
ierr = PetscDrawLine(draw,lg->x[(j-1)*dim+i],lg->y[(j-1)*dim+i],lg->x[j*dim+i],lg->y[j*dim+i],PETSC_DRAW_BLACK+i);CHKERRQ(ierr);
if (lg->use_dots) {
ierr = PetscDrawString(draw,lg->x[j*dim+i],lg->y[j*dim+i],PETSC_DRAW_RED,"x");CHKERRQ(ierr);
}
}
}
dim = sp->dim;
nopts = sp->nopts;
for (i=0; i<dim; i++) {
for (j=0; j<nopts; j++) {
ierr = PetscDrawString(draw,sp->x[j*dim+i],sp->y[j*dim+i],PETSC_DRAW_RED,"x");CHKERRQ(ierr);
}
}
}
ierr = PetscDrawFlush(lg->win);CHKERRQ(ierr);
ierr = PetscDrawPause(lg->win);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
/*@
PetscViewerDrawClear - Clears a PetscDraw graphic associated with a PetscViewer.
Not Collective
Input Parameter:
. viewer - the PetscViewer
Level: intermediate
.seealso: PetscViewerDrawOpen(), PetscViewerDrawGetDraw(),
@*/
PetscErrorCode PetscViewerDrawClear(PetscViewer viewer)
{
PetscErrorCode ierr;
PetscInt i;
PetscBool isdraw;
PetscViewer_Draw *vdraw;
PetscFunctionBegin;
ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);CHKERRQ(ierr);
if (isdraw) {
vdraw = (PetscViewer_Draw*)viewer->data;
for (i=0; i<vdraw->draw_max; i++) {
if (vdraw->draw[i]) {ierr = PetscDrawClear(vdraw->draw[i]);CHKERRQ(ierr);}
}
}
PetscFunctionReturn(0);
}
/*@
PetscDrawBarDraw - Redraws a bar graph.
Collective on PetscDrawBar
Input Parameter:
. bar - The bar graph context
Level: intermediate
.seealso: PetscDrawBar, PetscDrawBarCreate(), PetscDrawBarSetData()
@*/
PetscErrorCode PetscDrawBarDraw(PetscDrawBar bar)
{
PetscDraw draw;
PetscBool isnull;
PetscReal xmin,xmax,ymin,ymax,*values,binLeft,binRight;
PetscInt numValues,i,bcolor,color,idx,*perm,nplot;
PetscMPIInt rank;
PetscErrorCode ierr;
char **labels;
PetscFunctionBegin;
PetscValidHeaderSpecific(bar,PETSC_DRAWBAR_CLASSID,1);
ierr = PetscDrawIsNull(bar->win,&isnull);CHKERRQ(ierr);
if (isnull) PetscFunctionReturn(0);
ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)bar),&rank);CHKERRQ(ierr);
if (bar->numBins < 1) PetscFunctionReturn(0);
color = bar->color;
if (color == PETSC_DRAW_ROTATE) bcolor = PETSC_DRAW_BLACK+1;
else bcolor = color;
numValues = bar->numBins;
values = bar->values;
if (bar->ymin == bar->ymax) {
/* user has not set bounds on bars so set them based on the data */
ymin = PETSC_MAX_REAL;
ymax = PETSC_MIN_REAL;
for (i=0; i<numValues; i++) {
ymin = PetscMin(ymin,values[i]);
ymax = PetscMax(ymax,values[i]);
}
} else {
ymin = bar->ymin;
ymax = bar->ymax;
}
nplot = numValues; /* number of points to actually plot; if some are lower than requested tolerance */
xmin = 0.0;
xmax = nplot;
labels = bar->labels;
if (bar->sort) {
ierr = PetscMalloc1(numValues,&perm);CHKERRQ(ierr);
for (i=0; i<numValues;i++) perm[i] = i;
ierr = PetscSortRealWithPermutation(numValues,values,perm);CHKERRQ(ierr);
if (bar->sorttolerance) {
for (i=0; i<numValues;i++) {
if (values[perm[numValues - i - 1]] < bar->sorttolerance) {
nplot = i;
break;
}
}
}
}
draw = bar->win;
ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
ierr = PetscDrawAxisSetLimits(bar->axis,xmin,xmax,ymin,ymax);CHKERRQ(ierr);
ierr = PetscDrawAxisDraw(bar->axis);CHKERRQ(ierr);
ierr = PetscDrawCollectiveBegin(draw);CHKERRQ(ierr);
if (!rank) { /* Draw bins */
for (i=0; i<nplot; i++) {
idx = (bar->sort ? perm[numValues - i - 1] : i);
binLeft = xmin + i;
binRight = xmin + i + 1;
ierr = PetscDrawRectangle(draw,binLeft,ymin,binRight,values[idx],bcolor,bcolor,bcolor,bcolor);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,binLeft,ymin,binLeft,values[idx],PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,binRight,ymin,binRight,values[idx],PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,binLeft,values[idx],binRight,values[idx],PETSC_DRAW_BLACK);CHKERRQ(ierr);
if (labels) {
PetscReal h;
ierr = PetscDrawStringGetSize(draw,NULL,&h);CHKERRQ(ierr);
ierr = PetscDrawStringCentered(draw,.5*(binLeft+binRight),ymin - 1.5*h,bcolor,labels[idx]);CHKERRQ(ierr);
}
if (color == PETSC_DRAW_ROTATE) bcolor++;
if (bcolor > PETSC_DRAW_BASIC_COLORS-1) bcolor = PETSC_DRAW_BLACK+1;
}
}
ierr = PetscDrawCollectiveEnd(draw);CHKERRQ(ierr);
if (bar->sort) {ierr = PetscFree(perm);CHKERRQ(ierr);}
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
/*@
PetscDrawLGDraw - Redraws a line graph.
Not Collective,but ignored by all processors except processor 0 in PetscDrawLG
Input Parameter:
. lg - the line graph context
Level: intermediate
.seealso: PetscDrawSPDraw(), PetscDrawLGSPDraw()
@*/
PetscErrorCode PetscDrawLGDraw(PetscDrawLG lg)
{
PetscReal xmin=lg->xmin,xmax=lg->xmax,ymin=lg->ymin,ymax=lg->ymax;
PetscErrorCode ierr;
int i,j,dim = lg->dim,nopts = lg->nopts,rank,cl;
PetscDraw draw = lg->win;
PetscBool isnull;
PetscFunctionBegin;
if (lg && ((PetscObject)lg)->classid == PETSC_DRAW_CLASSID) PetscFunctionReturn(0);
PetscValidHeaderSpecific(lg,PETSC_DRAWLG_CLASSID,1);
ierr = PetscDrawIsNull(lg->win,&isnull);CHKERRQ(ierr);
if (isnull) PetscFunctionReturn(0);
#if defined(PETSC_HAVE_SETJMP_H) && defined(PETSC_HAVE_X)
if (!setjmp(PetscXIOErrorJumpBuf)) XSetIOErrorHandler((XIOErrorHandler)PetscXIOHandler);
else {
XSetIOErrorHandler(PETSC_NULL);
ierr = PetscDrawSetType(draw,PETSC_DRAW_NULL);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
#endif
ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
ierr = PetscDrawAxisSetLimits(lg->axis,xmin,xmax,ymin,ymax);CHKERRQ(ierr);
ierr = PetscDrawAxisDraw(lg->axis);CHKERRQ(ierr);
ierr = MPI_Comm_rank(((PetscObject)lg)->comm,&rank);CHKERRQ(ierr);
if (!rank) {
for (i=0; i<dim; i++) {
for (j=1; j<nopts; j++) {
if (lg->colors) cl = lg->colors[i];
else cl = PETSC_DRAW_BLACK+i;
ierr = PetscDrawLine(draw,lg->x[(j-1)*dim+i],lg->y[(j-1)*dim+i],lg->x[j*dim+i],lg->y[j*dim+i],cl);CHKERRQ(ierr);
if (lg->use_dots) {
ierr = PetscDrawString(draw,lg->x[j*dim+i],lg->y[j*dim+i],cl,"x");CHKERRQ(ierr);
}
}
}
}
if (lg->legend) {
PetscReal xl,yl,xr,yr,tw,th;
size_t len,mlen = 0;
int cl;
ierr = PetscDrawGetCoordinates(draw,&xl,&yl,&xr,&yr);CHKERRQ(ierr);
ierr = PetscDrawStringGetSize(draw,&tw,&th);CHKERRQ(ierr);
for (i=0; i<dim; i++) {
ierr = PetscStrlen(lg->legend[i],&len);CHKERRQ(ierr);
mlen = PetscMax(mlen,len);
}
ierr = PetscDrawLine(draw,xr - (mlen + 8)*tw,yr - 3*th,xr - 2*tw,yr - 3*th,PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,xr - (mlen + 8)*tw,yr - 3*th,xr - (mlen + 8)*tw,yr - (4+lg->dim)*th,PETSC_DRAW_BLACK);CHKERRQ(ierr);
for (i=0; i<dim; i++) {
cl = (lg->colors ? lg->colors[i] : i + 1);
ierr = PetscDrawLine(draw,xr - (mlen + 6.7)*tw,yr - (4 + i)*th,xr - (mlen + 3.2)*tw,yr - (4 + i)*th,cl);CHKERRQ(ierr);
ierr = PetscDrawString(draw,xr - (mlen + 3)*tw,yr - (4.5 + i)*th,PETSC_DRAW_BLACK,lg->legend[i]);CHKERRQ(ierr);
}
ierr = PetscDrawLine(draw,xr - 2*tw,yr - 3*th,xr - 2*tw,yr - (4+lg->dim)*th,PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,xr - (mlen + 8)*tw,yr - (4+lg->dim)*th,xr - 2*tw,yr - (4+lg->dim)*th,PETSC_DRAW_BLACK);CHKERRQ(ierr);
}
ierr = PetscDrawFlush(lg->win);CHKERRQ(ierr);
ierr = PetscDrawPause(lg->win);CHKERRQ(ierr);
#if defined(PETSC_HAVE_SETJMP_H) && defined(PETSC_HAVE_X)
XSetIOErrorHandler(PETSC_NULL);
#endif
PetscFunctionReturn(0);
}
/*@
PetscDrawLGDraw - Redraws a line graph.
Collective on PetscDrawLG
Input Parameter:
. lg - the line graph context
Level: intermediate
.seealso: PetscDrawSPDraw(), PetscDrawLGSPDraw(), PetscDrawLGReset()
@*/
PetscErrorCode PetscDrawLGDraw(PetscDrawLG lg)
{
PetscReal xmin,xmax,ymin,ymax;
PetscErrorCode ierr;
PetscMPIInt rank;
PetscDraw draw;
PetscBool isnull;
PetscFunctionBegin;
PetscValidHeaderSpecific(lg,PETSC_DRAWLG_CLASSID,1);
ierr = PetscDrawIsNull(lg->win,&isnull);CHKERRQ(ierr);
if (isnull) PetscFunctionReturn(0);
ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)lg),&rank);CHKERRQ(ierr);
draw = lg->win;
ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
xmin = lg->xmin; xmax = lg->xmax; ymin = lg->ymin; ymax = lg->ymax;
ierr = PetscDrawAxisSetLimits(lg->axis,xmin,xmax,ymin,ymax);CHKERRQ(ierr);
ierr = PetscDrawAxisDraw(lg->axis);CHKERRQ(ierr);
ierr = PetscDrawCollectiveBegin(draw);CHKERRQ(ierr);
if (!rank) {
int i,j,dim=lg->dim,nopts=lg->nopts,cl;
for (i=0; i<dim; i++) {
for (j=1; j<nopts; j++) {
cl = lg->colors ? lg->colors[i] : (PETSC_DRAW_BLACK + i);
ierr = PetscDrawLine(draw,lg->x[(j-1)*dim+i],lg->y[(j-1)*dim+i],lg->x[j*dim+i],lg->y[j*dim+i],cl);CHKERRQ(ierr);
if (lg->use_markers) {ierr = PetscDrawMarker(draw,lg->x[j*dim+i],lg->y[j*dim+i],cl);CHKERRQ(ierr);}
}
}
}
if (!rank && lg->legend) {
int i,dim=lg->dim,cl;
PetscReal xl,yl,xr,yr,tw,th;
size_t slen,len=0;
ierr = PetscDrawAxisGetLimits(lg->axis,&xl,&xr,&yl,&yr);CHKERRQ(ierr);
ierr = PetscDrawStringGetSize(draw,&tw,&th);CHKERRQ(ierr);
for (i=0; i<dim; i++) {
ierr = PetscStrlen(lg->legend[i],&slen);CHKERRQ(ierr);
len = PetscMax(len,slen);
}
xr = xr - 1.5*tw; xl = xr - (len + 7)*tw;
yr = yr - 1.0*th; yl = yr - (dim + 1)*th;
ierr = PetscDrawLine(draw,xl,yl,xr,yl,PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,xr,yl,xr,yr,PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,xr,yr,xl,yr,PETSC_DRAW_BLACK);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,xl,yr,xl,yl,PETSC_DRAW_BLACK);CHKERRQ(ierr);
for (i=0; i<dim; i++) {
cl = lg->colors ? lg->colors[i] : (PETSC_DRAW_BLACK + i);
ierr = PetscDrawLine(draw,xl + 1*tw,yr - (i + 1)*th,xl + 5*tw,yr - (i + 1)*th,cl);CHKERRQ(ierr);
ierr = PetscDrawString(draw,xl + 6*tw,yr - (i + 1.5)*th,PETSC_DRAW_BLACK,lg->legend[i]);CHKERRQ(ierr);
}
}
ierr = PetscDrawCollectiveEnd(draw);CHKERRQ(ierr);
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
int main(int argc,char **argv)
{
PetscDraw draw;
PetscErrorCode ierr;
int i,j,w,h;
int k = PETSC_DRAW_BLACK;
int r = PETSC_DRAW_RED;
int g = PETSC_DRAW_GREEN;
int b = PETSC_DRAW_BLUE;
int y = PETSC_DRAW_YELLOW;
int c0 = PETSC_DRAW_BASIC_COLORS;
int c2 = 255;
int c1 = (c0+c2)/2;
ierr = PetscInitialize(&argc,&argv,NULL,help);CHKERRQ(ierr);
ierr = PetscDrawCreate(PETSC_COMM_WORLD,0,"Draw Example",PETSC_DECIDE,PETSC_DECIDE,101,101,&draw);CHKERRQ(ierr);
/*ierr = PetscDrawSetPause(draw,2.0);CHKERRQ(ierr);*/
ierr = PetscDrawSetFromOptions(draw);CHKERRQ(ierr);
ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr);
ierr = PetscDrawGetWindowSize(draw,&w,&h);CHKERRQ(ierr);
ierr = PetscDrawSetCoordinates(draw,0,0,--w,--h);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
/* one-pixel lines in the window corners */
ierr = PetscDrawLine(draw,0,0,0,0,r);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,w,0,w,0,r);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,0,h,0,h,r);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,w,h,w,h,r);CHKERRQ(ierr);
/* border lines with two pixels from borders */
ierr = PetscDrawLine(draw,0+2,0,w-2,0,k);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,0+2,h,w-2,h,k);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,0,0+2,0,h-2,k);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,w,0+2,w,h-2,k);CHKERRQ(ierr);
/* oblique lines */
ierr = PetscDrawLine(draw,0+2,h/2,w-2,h-2,b);CHKERRQ(ierr);
ierr = PetscDrawLine(draw,0+1,h-1,w-1,0+1,b);CHKERRQ(ierr);
/* vertical up and down arrow, two pixels from borders */
ierr = PetscDrawArrow(draw,1*w/4,0+2,1*w/4,h-2,g);CHKERRQ(ierr);
ierr = PetscDrawArrow(draw,3*w/4,h-2,3*w/4,0+2,g);CHKERRQ(ierr);
/* horizontal right and left arrow, two pixels from borders */
ierr = PetscDrawArrow(draw,0+2,3*h/4,w-2,3*h/4,g);CHKERRQ(ierr);
ierr = PetscDrawArrow(draw,w-2,1*h/4,0+2,1*h/4,g);CHKERRQ(ierr);
/* flush, save, and pause */
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawSave(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr);
ierr = PetscDrawGetWindowSize(draw,&w,&h);CHKERRQ(ierr);
ierr = PetscDrawSetCoordinates(draw,0,0,--w,--h);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
/* one-pixel rectangles in the window corners */
ierr = PetscDrawRectangle(draw,0,0,0,0,k,k,k,k);CHKERRQ(ierr);
ierr = PetscDrawRectangle(draw,w,0,w,0,k,k,k,k);CHKERRQ(ierr);
ierr = PetscDrawRectangle(draw,0,h,0,h,k,k,k,k);CHKERRQ(ierr);
ierr = PetscDrawRectangle(draw,w,h,w,h,k,k,k,k);CHKERRQ(ierr);
/* border rectangles with two pixels from borders */
ierr = PetscDrawRectangle(draw,0+2,0,w-2,0,k,k,k,k);CHKERRQ(ierr);
ierr = PetscDrawRectangle(draw,0+2,h,w-2,h,k,k,k,k);CHKERRQ(ierr);
ierr = PetscDrawRectangle(draw,0,0+2,0,h-2,k,k,k,k);CHKERRQ(ierr);
ierr = PetscDrawRectangle(draw,w,0+2,w,h-2,k,k,k,k);CHKERRQ(ierr);
/* more rectangles */
ierr = PetscDrawRectangle(draw,0+2,0+2,w/2-1,h/2-1,b,b,b,b);CHKERRQ(ierr);
ierr = PetscDrawRectangle(draw,0+2,h/2+1,w/2-1,h-2,r,r,r,r);CHKERRQ(ierr);
ierr = PetscDrawRectangle(draw,w/2+1,h/2+1,w-2,h-2,g,g,g,g);CHKERRQ(ierr);
ierr = PetscDrawRectangle(draw,w/2+1,0+2,w-2,h/2-1,y,y,y,y);CHKERRQ(ierr);
/* flush, save, and pause */
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawSave(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr);
ierr = PetscDrawGetWindowSize(draw,&w,&h);CHKERRQ(ierr);
ierr = PetscDrawSetCoordinates(draw,0,0,--w,--h);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
/* interpolated triangles, one pixel from borders */
ierr = PetscDrawTriangle(draw,0+1,0+1,w-1,0+1,w-1,h-1,c0,c1,c2);CHKERRQ(ierr);
ierr = PetscDrawTriangle(draw,0+1,0+1,0+1,h-1,w-1,h-1,c0,c1,c2);CHKERRQ(ierr);
/* interpolated triangle, oblique, inside canvas */
ierr = PetscDrawTriangle(draw,w/4,h/4,w/2,3*h/4,3*w/4,h/2,c2,c1,c0);CHKERRQ(ierr);
/* flush, save, and pause */
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawSave(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr);
ierr = PetscDrawGetWindowSize(draw,&w,&h);CHKERRQ(ierr);
ierr = PetscDrawSetCoordinates(draw,0,0,--w,--h);CHKERRQ(ierr);
ierr = PetscDrawClear(draw);CHKERRQ(ierr);
/* circles and ellipses */
ierr = PetscDrawEllipse(draw,w/2,h/2,w-1,h-1,r);CHKERRQ(ierr);
ierr = PetscDrawEllipse(draw,w,h/2,w/2,h,g);CHKERRQ(ierr);
ierr = PetscDrawEllipse(draw,0,0,w,h/2,b);CHKERRQ(ierr);
ierr = PetscDrawEllipse(draw,w/4,3*h/4,w/2,h/4,y);CHKERRQ(ierr);
ierr = PetscDrawCoordinateToPixel(draw,w/2,h/2,&i,&j);CHKERRQ(ierr);
ierr = PetscDrawPointPixel(draw,i,j,k);CHKERRQ(ierr);
/* flush, save, and pause */
ierr = PetscDrawFlush(draw);CHKERRQ(ierr);
ierr = PetscDrawSave(draw);CHKERRQ(ierr);
ierr = PetscDrawPause(draw);CHKERRQ(ierr);
ierr = PetscDrawDestroy(&draw);CHKERRQ(ierr);
ierr = PetscFinalize();
return 0;
}